CN115387137A - Modified chlorophyll dye transfer printing method for polyester fabric - Google Patents
Modified chlorophyll dye transfer printing method for polyester fabric Download PDFInfo
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- CN115387137A CN115387137A CN202211226343.0A CN202211226343A CN115387137A CN 115387137 A CN115387137 A CN 115387137A CN 202211226343 A CN202211226343 A CN 202211226343A CN 115387137 A CN115387137 A CN 115387137A
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- printing
- transfer printing
- thermal transfer
- polyester fabric
- soaping
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P3/00—Special processes of dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form, classified according to the material treated
- D06P3/34—Material containing ester groups
- D06P3/52—Polyesters
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
- D06P1/34—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using natural dyestuffs
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
- D06P1/44—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders
- D06P1/64—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders using compositions containing low-molecular-weight organic compounds without sulfate or sulfonate groups
- D06P1/651—Compounds without nitrogen
- D06P1/65106—Oxygen-containing compounds
- D06P1/65125—Compounds containing ester groups
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
- D06P1/90—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using dyes dissolved in organic solvents or aqueous emulsions thereof
- D06P1/92—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using dyes dissolved in organic solvents or aqueous emulsions thereof in organic solvents
- D06P1/928—Solvents other than hydrocarbons
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P5/00—Other features in dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form
- D06P5/003—Transfer printing
- D06P5/004—Transfer printing using subliming dyes
Abstract
The invention relates to a transfer printing method of modified chlorophyll dye of polyester fabric, comprising the following steps: (1) Mixing the ionic liquid, sodium copper chlorophyllin and dyeing promoter to prepare thermal transfer printing paste, and scraping and printing the thermal transfer printing paste on thermal transfer printing paper through a silk screen according to required patterns to obtain printing transfer paper; (2) And (3) transferring the patterns on the transfer paper obtained in the step (1) to the polyester fabric by using a thermal transfer printing machine, soaping and drying. The polyester fabric prepared by the invention has rich printing layers, excellent rubbing fastness and soaping fastness and good market application prospect.
Description
Technical Field
The invention belongs to the field of textile printing, and particularly relates to a transfer printing method for modified chlorophyll dye of polyester fabric.
Background
At present, the main methods for printing and fixing the terylene face fabric include a high-temperature high-pressure steaming method, a hot melting method and a normal-pressure high-temperature steaming fixing method. The high-temperature high-pressure steaming method needs to add a dispersant and a leveling agent, and the printing condition consumes energy; the dyeing by the hot melting method needs to use dye with small molecular weight and easy sublimation, and has more working procedures, complex process, high energy consumption, amplified waste water discharge and certain pollution to the environment. The normal pressure high temperature steaming time is long, and the energy consumption is low.
At present, the transfer printing process is mainly applied to synthetic fiber fabrics such as terylene, and the printing mainly adopts a thermal transfer printing mode. Selecting a disperse dye with good sublimation property as a coloring agent, printing the disperse dye on transfer printing paper, and then heating and pressurizing through a thermal transfer printing machine to transfer the disperse dye on the transfer printing paper onto the transfer fabric polyester fiber. The thermal transfer printing method for polyester fiber is not ideal. There are mainly two problems: (1) the disperse dye used for terylene printing needs to be dissolved in a solvent, and the solvent evaporation has certain environmental protection problem in the thermal transfer printing process. (2) The disperse dye in the transfer printing fabric polyester fiber can generate a heat migration phenomenon, so that the heat sublimation fastness of the disperse dye on the polyester fabric is extremely poor.
Chlorophyll is an important substance indispensable for photosynthesis of green plants in the nature, and is also an important natural dye imparted to human beings in the nature. Under natural conditions, chlorophyll is easy to react, and substances such as metal ions, sunlight, acid, alkali, oxygen and the like can decompose porphyrin rings in the chlorophyll, so that the application of the chlorophyll is greatly limited. Sodium copper chlorophyllin is a modified chlorophyll with excellent chemical stability, and is widely applied to the fields of fabric dyeing, food additives, photoelectric conversion materials and the like. However, sodium copper chlorophyllin as a green dye has great application limitation, and it cannot be dyed at high temperature like chlorophyll, and the molecular structure of sodium copper chlorophyllin is destroyed due to the high temperature. Direct printing of sodium copper chlorophyllin at high temperatures for long periods of time is clearly not feasible.
For polyester fabrics, thermal transfer printing is widely used due to the factors of few working procedures, low energy consumption, no wastewater discharge, good printing effect and the like. However, for chlorophyll dyes, the printing process of the existing thermal transfer printing process cannot be finished because sodium copper chlorophyllin has a large molecular weight, is not easy to sublimate, and is easy to decompose under a high-temperature condition. When the heat transfer temperature is higher than 220 ℃, the high temperature causes damage to the polyester fabric, and the quality requirement is difficult to achieve.
Disclosure of Invention
The invention aims to solve the technical problem of providing a transfer printing method of modified chlorophyll dye for polyester fabric, which is simple to operate in the printing process, basically free from waste water discharge, energy-saving and emission-reducing, and meets the requirement of environmental protection compared with the traditional polyester dyeing process.
The invention provides a transfer printing method of modified chlorophyll dye for polyester fabric, which comprises the following steps:
(1) Fully stirring and mixing the ionic liquid, sodium copper chlorophyllin and dyeing promoter to prepare thermal transfer printing paste; printing the thermal transfer printing paste on thermal transfer printing paper according to the required pattern to obtain printing transfer paper; wherein the mass ratio of the sodium copper chlorophyllin, the dyeing promoter and the ionic liquid is 5-45;
(2) Transferring the patterns on the printing transfer paper obtained in the step (1) onto the polyester fabric by using a thermal transfer printing machine, wherein the transfer printing temperature is 200-240 ℃, the transfer printing pressure is 0.3-0.7MPa, and the transfer printing time is 10-50s; and finally soaping and drying.
The ionic liquid in the step (1) is at least one of 1-butyl-3-methylimidazole hexafluorophosphate, 1-hexyl-3-methylimidazole hexafluorophosphate, 1-octyl-3-methylimidazole bistrifluoromethylsulfonyl imide salt and 1-butyl-3-methylimidazole tetrafluoroborate.
The dyeing promoter in the step (1) is at least one of benzyl acetate and dibutyl succinate.
The printing mode in the step (1) is screen printing, digital printing, gravure printing or offset printing.
The soaping temperature in the step (2) is 40-50 ℃, and the soaping time is 30-40min.
The drying temperature in the step (2) is 80-90 ℃, and the drying time is 3-10min.
Advantageous effects
(1) Compared with the traditional polyester dyeing process, the method has the advantages of simple operation in the printing process, basically no waste water generation and emission, energy conservation and emission reduction, and accordance with the environmental protection requirement.
(2) By using the ionic liquid, the thermal transfer printing paste with uniform dispersion and good stability can be prepared, and the preparation process is environment-friendly.
(3) The dyeing promoter is added, so that the printing effect of the polyester fabric is obviously improved. The dyeing promoter can make the polyester fiber generate swelling action, so that the molecular distance of the polyester fiber is increased. The printing paste can easily enter the polyester fiber, so that the dye uptake of the printing paste is increased.
(4) The method is particularly suitable for dyes prepared from natural pigments, the heat transfer printing process of the method has high color yield and good color fastness, and printed fabrics have good soaping fastness and rubbing fastness.
Drawings
FIG. 1 is a diagram of a finished flower pattern printed by the process of the present invention;
FIG. 2 is the effect of temperature on the K/S value of a printed polyester fabric;
FIG. 3 is the effect of printing pressure on the K/S value of a printed polyester fabric;
FIG. 4 is a graph of the effect of time on the K/S value of a printed polyester fabric;
FIG. 5 is an influence of mass fraction of sodium copper chlorophyllin on a K/S value of a printed polyester fabric;
FIG. 6 is a graph showing the effect of the amount of benzyl acetate on the K/S value of a printed polyester fabric.
Detailed Description
The invention will be further illustrated with reference to the following specific examples. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Further, it should be understood that various changes or modifications of the present invention may be made by those skilled in the art after reading the teaching of the present invention, and such equivalents may fall within the scope of the present invention as defined in the appended claims.
In the examples, a CM-3600A spectrocolorimeter (D) was used for K/S value measurement 65 Illuminant, 10 ° test angle) the fabric apparent K/S value was measured and 5 measurements were averaged per sample. The soaping color fastness is measured by the standard GB/T3921-2008 'color fastness test for textiles, soaping fastness', and the friction color fastness is measured by the standard GB/T3920-2008 'color fastness test for textiles, friction color fastness'.
Example 1
(1) The thermal transfer printing paste was prepared by dissolving 35% by mass of sodium copper chlorophyllin in 64% of 1-butyl-3-methylimidazolium hexafluorophosphate and adding 1% of benzyl acetate thereto.
(2) And printing the thermal transfer printing paste on the transfer paper by using a magnetic bar printing machine.
(3) Then, the patterns are transferred to the surface of the polyester fabric by heat transfer at six temperatures of 160 ℃, 180 ℃, 200 ℃, 220 ℃, 230 ℃ and 240 ℃ for 30s under the pressure of 0.5 MPa.
(4) And (4) after the transfer printing is finished, soaping for 30min at 40 ℃, and drying at 80 ℃ to test the K/S value of the printed fabric.
As can be seen from FIG. 2, when the temperature is higher than the glass transition temperature of the polyester, the macromolecular chains of the fibers move more rapidly, and the intermolecular gap increases. When the temperature reaches about 200 ℃, the gap of the amorphous area is increased to gradually form a semi-molten state, a condition is provided for sublimed gaseous dye to enter the fiber, and sodium copper chlorophyllin is diffused into the amorphous area to be colored under the action of the dye concentration gradient.
Example 2
(1) The thermal transfer printing paste was prepared by dissolving 35% by mass of sodium copper chlorophyllin in 64% by mass of 1-butyl-3-methylimidazolium hexafluorophosphate and adding 1% by mass of benzyl acetate thereto.
(2) And printing the thermal transfer printing paste on the transfer paper by using a magnetic bar printing machine.
(3) Then, the pattern is transferred to the surface of the polyester fabric by taking the temperature of 220 ℃ for heat transfer printing for 30s and taking five pressures of 0.3MPa, 0.4MPa, 0.5MPa, 0.6MPa and 0.7 MPa.
(4) And (4) after the transfer printing is finished, soaping for 30min at 40 ℃, and drying at 80 ℃ to test the K/S value of the printed fabric.
As can be seen from FIG. 3, the K/S value increases with the increase of the printing pressure when the printing pressure is less than 0.5MPa, and decreases with the increase of the printing pressure after the printing pressure is more than 0.5 MPa. When the printing pressure is high, the transfer paper and the polyester fabric are adhered to cause the K/S value to be reduced.
Example 3
(1) The thermal transfer printing paste was prepared by dissolving 35% by mass of sodium copper chlorophyllin in 64% by mass of 1-butyl-3-methylimidazolium hexafluorophosphate and adding 1% by mass of benzyl acetate thereto.
(2) And printing the thermal transfer printing paste on the transfer paper by using a magnetic bar printing machine.
(3) Then, the temperature is taken as 220 ℃ for thermal transfer printing, the pressure is taken as 0.5MPa, and the patterns are transferred to the surface of the polyester fabric at three times of 10s,20s, 30s, 40s and 50 s.
(4) And (4) after the transfer printing is finished, soaping for 30min at 40 ℃, and drying at 80 ℃ to test the K/S value of the printed fabric.
As can be seen from fig. 4, the amorphous regions of the fiber are not completely opened and the dye transfer to the fiber is less when the printing time is less than 30 s. When the time is more than 30s, the fiber enters a molten state after being heated for too long time, and is adhered with the transfer paper, so that the dyeing effect is poor. When the printing time is controlled to be 30s, the printing effect is better. .
Example 4
(1) Five groups of sodium copper chlorophyllin with the mass fractions of 5%, 15%, 25%,35% and 45% are respectively dissolved in 1-butyl-3-methylimidazole hexafluorophosphate, and 1% benzyl acetate is added to prepare the thermal transfer printing paste.
(2) Transferring the printing paste by a magnetic bar printing machine; and printing on transfer paper.
(3) And then, performing thermal transfer printing at the temperature of 220 ℃, and transferring the pattern to the surface of the polyester fabric at the pressure of 0.5MPa for 30 s.
(4) And (4) after the transfer printing is finished, soaping for 30min at 40 ℃, and drying at 80 ℃ to test the K/S value of the printed fabric.
As can be seen from fig. 5, when the mass fraction of sodium copper chlorophyllin is small, the printing paste has low viscosity, and is easy to bleed, and the color yield of the fabric is low. When the mass fraction of chlorophyll is more than 35%, the viscosity is too high, part of sodium copper chlorophyllin cannot be dissolved, and sodium copper chlorophyllin particles in the paste cause the problems of poor homochromatism, defects and the like of the fabric after transfer printing. .
Example 5
(1) Dissolving 35% of sodium copper chlorophyllin in 1-butyl-3-methylimidazolium hexafluorophosphate by mass, and preparing color paste by taking five groups of benzyl acetate with the mass fractions of 0%, 1%, 5%, 15% and 25% respectively.
(2) And printing the color paste on the transfer paper by using a magnetic bar printing machine.
(3) And then, carrying out thermal transfer printing at the temperature of 220 ℃, and transferring the pattern to the surface of the polyester fabric under the pressure of 0.5MPa for 30 s.
(4) And (4) after the transfer printing is finished, soaping for 30min at 40 ℃, and drying at 80 ℃ to test the K/S value of the printed fabric.
As can be seen from FIG. 6, the addition of benzyl acetate has an effect of promoting the dyeing of dacron on sodium copper chlorophyllin. When the mass fraction of the benzyl acetate reaches 1%, a good promotion effect can be achieved, and when the mass fraction of the benzyl acetate is more than 1%, the swelling of the fiber is too high, and the dye returns to the color paste, so that the dye uptake is reduced. Benzyl acetate mainly enters the inside of the polyester fiber, adjacent chemical bonds inside the fiber are opened, the amorphous area inside the polyester fiber loses acting force, the gap of the fiber is enlarged, and sodium copper chlorophyllin can enter the fiber. Meanwhile, benzyl acetate can form a layer of liquid film on the surface of the terylene, the liquid film has higher affinity to the dye, and the dye can be fully dissolved in the liquid film. The liquid film contains a large amount of dye, so that the concentration difference of the dye inside and outside the polyester fiber is increased, and the printing dye can enter the fiber more easily.
Example 6
The color fastness of the printed fabric at 220 ℃, 30s and 0.5MPa using 35% sodium copper chlorophyllin, 1% benzyl acetate and 64% ionic liquid is shown in Table 1. As can be seen from Table 1, the soaping fastness of the fabric reaches 4 grades, and the dry rubbing fastness reaches 3-4 grades.
TABLE 1 color fastness test of printed polyester fabrics
As can be seen from Table 1, the fastness to soaping of the printed polyester fabric reaches 4 grades, the fastness to dry rubbing reaches 3-4 grades, and the fastness is good.
The foregoing description has described specific embodiments of the present invention. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes or modifications may be made by one skilled in the art within the scope of the appended claims without departing from the spirit of the invention.
Claims (6)
1. A method for transfer printing of modified chlorophyll dye of polyester fabric comprises:
(1) Fully stirring and mixing the ionic liquid, sodium copper chlorophyllin and dyeing promoter to prepare thermal transfer printing paste; printing the thermal transfer printing paste on thermal transfer printing paper according to the required pattern to obtain printing transfer paper; wherein the mass ratio of the sodium copper chlorophyllin, the dyeing promoter and the ionic liquid is 5-45;
(2) Transferring the patterns on the printing transfer paper obtained in the step (1) onto the polyester fabric by using a thermal transfer printing machine, wherein the transfer printing temperature is 200-240 ℃, the transfer printing pressure is 0.3-0.7MPa, and the transfer printing time is 10-50s; and finally, soaping and drying.
2. The method of claim 1, wherein: the ionic liquid in the step (1) is at least one of 1-butyl-3-methylimidazole hexafluorophosphate, 1-hexyl-3-methylimidazole hexafluorophosphate, 1-octyl-3-methylimidazole bistrifluoromethylsulfonyl imide salt and 1-butyl-3-methylimidazole tetrafluoroborate.
3. The method of claim 1, wherein: the dyeing promoter in the step (1) is at least one of benzyl acetate and dibutyl succinate.
4. The method of claim 1, wherein: the printing mode in the step (1) is screen printing, digital printing, gravure printing or offset printing.
5. The method of claim 1, wherein: the soaping temperature in the step (2) is 40-50 ℃, and the soaping time is 30-40min.
6. The method of claim 1, wherein: the drying temperature in the step (2) is 80-90 ℃, and the drying time is 3-10min.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211226343.0A CN115387137B (en) | 2022-10-09 | 2022-10-09 | Modified chlorophyll dye transfer printing method for polyester fabric |
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| CN202211226343.0A CN115387137B (en) | 2022-10-09 | 2022-10-09 | Modified chlorophyll dye transfer printing method for polyester fabric |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102776790A (en) * | 2012-07-10 | 2012-11-14 | 东华大学 | Waterless dyeing method of dispersed dye |
| CN103436073A (en) * | 2013-07-30 | 2013-12-11 | 东华大学 | Water-based dispersion liquid dye ink for ink jetting and printing of polyester textile |
| CN105200820A (en) * | 2015-11-05 | 2015-12-30 | 盐城工业职业技术学院 | Printing paste adopting ionic liquid |
| CN105332299A (en) * | 2015-11-02 | 2016-02-17 | 内蒙古工业大学 | Printing method for cashmere sweater pigment |
| CN114016308A (en) * | 2021-11-26 | 2022-02-08 | 武汉纺织大学 | Digital transfer printing method using plant dye ink |
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2022
- 2022-10-09 CN CN202211226343.0A patent/CN115387137B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102776790A (en) * | 2012-07-10 | 2012-11-14 | 东华大学 | Waterless dyeing method of dispersed dye |
| CN103436073A (en) * | 2013-07-30 | 2013-12-11 | 东华大学 | Water-based dispersion liquid dye ink for ink jetting and printing of polyester textile |
| CN105332299A (en) * | 2015-11-02 | 2016-02-17 | 内蒙古工业大学 | Printing method for cashmere sweater pigment |
| CN105200820A (en) * | 2015-11-05 | 2015-12-30 | 盐城工业职业技术学院 | Printing paste adopting ionic liquid |
| CN114016308A (en) * | 2021-11-26 | 2022-02-08 | 武汉纺织大学 | Digital transfer printing method using plant dye ink |
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